I've reinstalled the xcom, patched it up to V2, and installed xcomutil. Made no difference. However, i took on aboard your comments, and indeed i did have those files, and copied the .pck, .tab files from triton into /terrain folder and renamed it as barracud.pck and tab. the end result is that it finally works!!! Maybe there is a flaw within XcomUtil not moving and copying files correctly for the version of game i have got?